Lily Aldridge and Gigi Hadid take a selfie together on stage at the Sports Illustrated Swimsuit 2016 Swim City event at the Altman Building in New York City on February 15. File Photo by John Angelillo/UPI

New Jersey State Senator Corey Booker (R) takes a selfie with Florida State Senator Bill Nelson (L) and Michigan State Senator Gary Peters (C) prior to the Hands Off: The Future of Self-Driving Cars hearing at Russell Senate Building on March 15 in Washington, D.C. File Photo by Leigh Vogel/UPI

Vice President Joe Biden takes a selfie with Wounded Warrior Ride attendees at the White House in Washington, D.C., on April 14. The event helps raise awareness to the public about severely injured veterans and provides rehabilitation opportunities. Pool photo by Aude Guerrucci/UPI

U.S. Secretary of State John Kerry poses for a selfie with a Mozart impersonator as he takes a walk around the Vienna State Opera in Vienna, Austria, on May 16. File Photo by U.S. Department of State/UPI